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Comprehensive thermochemical study of sublimation, melting and vaporization of scandium(III) beta-diketonates Научная публикация

Журнал Thermochimica Acta
ISSN: 0040-6031 , E-ISSN: 1872-762X
Вых. Данные Год: 2020, Том: 689, Номер статьи : 178639, Страниц : 9 DOI: 10.1016/j.tca.2020.178639
Ключевые слова Scandium beta-diketonates DSC Static and effusion methods Thermodynamic characteristics Melting and evaporation processes
Авторы Zelenina Ludmila N. 1 , Zherikova Kseniya V. 1 , Chusova Tamara P. 1 , Trubin Sergey V. 1 , Bredikhin Roman A. 2 , Gelfond Nikolay V. 1 , Morozova Natalia B. 1
Организации
1 Nikolaev Institute of Inorganic Chemistry, Siberian Branch of Russian Academy of Sciences
2 Vorozhtsov Novosibirsk Institute of Organic Chemistry, Siberian Branch of Russian Academy of Science

Реферат: The pressure of saturated and unsaturated vapor over solid and liquid scandium(III) complexes with acet-ylacetone Sc(acac)3, trifluoroacetylacetone Sc(tfac)3, and hexafluoroacetylacetone Sc(hfac)3 has been measured using a static method with glass membrane-gauge manometers and Knudsen effusion method with mass spec-trometric gas phase monitoring. The temperatures and enthalpies of melting were measured for these com-pounds by differential scanning calorimetry. As a result of this study the thermal stabilities of investigatedcomplexes were established, the temperature dependences of saturated vapor pressure were obtained, the thermodynamic characteristics of processes under study (ΔprH°T, ΔprS°T) were calculated. Thermal properties of these compounds were compared with literature data.
Библиографическая ссылка: Zelenina L.N. , Zherikova K.V. , Chusova T.P. , Trubin S.V. , Bredikhin R.A. , Gelfond N.V. , Morozova N.B.
Comprehensive thermochemical study of sublimation, melting and vaporization of scandium(III) beta-diketonates
Thermochimica Acta. 2020. V.689. 178639 :1-9. DOI: 10.1016/j.tca.2020.178639 WOS Scopus РИНЦ
Даты:
Поступила в редакцию: 30 окт. 2019 г.
Принята к публикации: 1 мая 2020 г.
Опубликована online: 11 мая 2020 г.
Опубликована в печати: 1 июл. 2020 г.
Идентификаторы:
Web of science WOS:000540733500004
Scopus 2-s2.0-85085247671
РИНЦ 43292798
OpenAlex W3023325898
Альметрики: